Sylvania



Patented Oct. 4, I898.

4 Shaets$heet I.

(No Model.)

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Patented Oct. 4, I898. J. G. SCHREUDER.

RAILWAY SIGNALING. (Application Mei-7am B, 1898.)

4 Sheets-$heet 3.

(No Model.)

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INVENTOR,

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No. 611,943. Patented 0st. 4, 1898. J. G. SCHREUDEB.

RAILWAY SIGNALING.

(Application filed-Tan. S, 1898.)

4 Sheets-$heet 3.

(No Mndel.)

INVENTOR,

Patented Oct. 4, 1898.. J. E. SCHREUDEB.

RAILWAY SIGNALING.

(Application filed Jan. 3, 1898.)

4 Shees-$heet 4.

' (No Model.)

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WITNESSES:

JENS G. SOHREUDER, OF EDGEWOOD PARK, PENNSYLVANIA, ASSIGNOR TO THE UNIONSWITCH AND SIGNAL COMPANY, OF SWISSVALE, PENN- SYLVANIA.

RAILWAY SIGNALING.

SPECIFICATION forming part of Letters Patent N 0. 611,943, dated October4, 1898.

Application filed January 3, 1898. Serial No. 665,326. (No model.)

To all whom it may concern.-

Be it known that I, J ENS G. SCHREUDER, a subject of the King of Swedenand Norway, residing at Edgewood Park, in the county of Allegheny andState of Pennsylvania, have invented or discovered certain new anduseful Improvements in Railway Signaling, of which improvements thefollowing is a specification.

The invention described herein relates to certain improvements inautomatic signal apparatus of the class or kind forming thesubject-matter of Letters Patent No. 600,384, of March 8, 1898, andconsists, generally stated, of electrically controlled and operatedsignal mechanism whereby a signal is set to danger and again cleared byand in accordance with train movements.

The object of the present invention is to provide for the setting of thehome and distant signal to clear position by the operation of anelectric motor, itself controlled by train -movements.

The invention is hereinafter more fully described and claimed. 4

In the accompanying drawings, forming a part of this specification,Figure l is a perspective view of my improved signal-operatingmechanism. Fig. 2 is a side elevation of the same. Figs. 3 and 4 aredetail views, on an enlarged scale, of the signal-lever, showing theparts of the same in normal and release positions, respectively; andFig. 5 is a diagrammatic View illustrating a portion of a railway-trackand the circuits controlling the signals and motor.

In the practice of my invention the levers 1 and 1, which are connected,respectively, to the home and distant signal-blades by the rods 2 2, arepivotally mounted loosely on the shaft 3, secured to the upper ends ofthe standards 4, projecting upwardly from the bed-plates 5. At one endthese levers are provided with fingers 6 6, which are secured on a pin7, mounted in bearings near the outer ends of the levers and providedwith arms 7. These arms are connected by links 8 to one end of levers 9,which are mounted on pins 10, and are provided'at their opposite endswith pins 11, adapted to engage :With

forks 12. These forks are loosely mounted on pins 13 and are providedWith arms 14, which are connected by links 15 to the levers 16 of thearmatures of the electric magnets 17 17, secured on the signal-levers 1and 1. One of the prongs of each of the forks 12 is provided with acurved extension 18, held upon the pins 11 when the latter aredisengaged from the fork by the Weight of the armature, and is guided bysuch extension into engagement With the forks. Springs 19 are so securedon the levers 1 1 as to bear upon the fingers 6 6 and press them intoalinement with the levers 1 1, and through the connections described tocause the pins to engage the forks 12, thereby permitting thearmature-levers to drop toward the poles of the magnets 17 17, whichwhen excited will hold the fingers 6 6 in alinement With lovers 1 1, asshown in Fig. 3.

The fingers 6 6 when held in alinement With the lovers 1 and 1 and whenthe signals are at danger position project into the path of movement ofstuds or projections 21 on the sprocket-chains 22 22,which are arrangedaround sprocket-wheels 23 and 24, secured on the shafts 25 and 26,respectively. The shaft 26 has secured thereto a gear-wheel 27,intermeshing with a worm on the shaft 28 of the motor 29. raised toclear the signals by the chains 22 22 pins 30 on the fingers 6 6 willengage springactuated hooks 31 just as the studs 21 pass out from underthe fingers 6 6, thereby holding the lovers 1 1 raised and the signalsin clear position, so long as the fingers are held in alinement with thelevers, by the magnets 17 17.

On the bed-plate of the apparatus is secured the block 32, provided withupwardlyprojecti-ng standards 33, provided with bearings for the shafts34, on which are secured arms 35 35. These arms are connected by rods 3636 to the signal-levers 1 1, as shown in Figs. 1 and 2. The shafts 34are surrounded with insulating material on which are secured metallicstrips adapted in certain positions of the shafts to form electricalconnections with springs secured on but insulated from the blocks 32.These strips and As the levers 1 and 1 aresprings form make-and-breakmechanisms at, b, c, and (Z in circuits to be hereinafter described,three of such make-and-break mechanisms being on the shaft which isactuated by the home signal-lever 1, while the fourth make-and-breakmechanism cl is on the shaft actuated by the distant signal-lever l.

Pneumatic cushions, consisting of cylinders 37 and pistons 38,projecting through the open lower ends of the cylinders are so securedon the posts 4 as to receive the impact of the short ends of the levers1 1 when the opposite ends thereof drop to set the signals to dangerposition.

The circuits for controlling and operating the signals and motor areclearly shown in Fig. 5. The circuit for holding the finger 6 of lever 1of home-signal A in operative position consists, starting from thebattery X, of Wires 39 and 40, armature 41, and contact-point oftrack-relay 42, wire 43, highresistance coil of magnet 17, and wire 44to battery. The circuit for shifting the lever 1,

so as to clear the signal A, consists of wires 39 and 40, armature 41,and contact-point of relay 42, wire 43, branch wire 45, make-andbreakmechanism a, wire 46, low-resistance coil of magnet 17 and wire 47 toand through motor 29 to battery. The circuit for holding the finger 6 oflever 1, connected to distant signal A consists of wires 39, 40, and 48,contact-point and armature 49 of relay 50, wire '51 to high-resistancecoil of magnet 17, wire 52, make-and-break mechanism 19, and wire 44 tobattery. The circuit for shifting the lever 17 to clear the distantsignal A consists of wires 39, 40, and 48, contact-point and armature 49of relay 50, wires 51 and 53, makeand-break mechanism (Z, wire 54,low-resistance coil of magnet 17, wire 55, make-andbreak mechanism c,andwire 47 to and through motor 29 to battery. The circuit for relay 50,starting from battery X, consists of wire 39, common wire 56 topreceding station, wire 57, relay 50, wires 58, make-and-break mechanismb, and wire 44 to battery.

It will be observed that the magnets 17 and 17 consist of two coils, oneof high resistance and the other of a low resistance, and that thelatter is in series with the motor. The function of the low-resistancecoils of these magnets is to hold the fingers 6 G in operative positionwhile the signals are being shifted to clear position, while thehigh-resistance coils become operative to hold the fingers in operativeposition when the motorcircuit is cut out.

In describing the operation of my improved apparatus it will be supposedthat a train is on section A,and that the succeeding sections B, &c.,are clear, and that the signals con trolling such sections are incorresponding positions, as shown in Fig. 5. By the entrance of thetrain upon section 8 track-relay 42 is cut out and its armature will beshifted to break the holding-circuit of magnet 17 of home-signal A. Onthe release of the armature of magnet 17 the finger 6 is free to beturned on its pivot by the weight of signallever 1, thereby disengagingthe finger from the catch 31 and permitting the lever 1 and its signal Ato drop to danger. This movement of the signal-lever 1 will operatethrough the medium of rod 36 and arm 35 to open the makeand-breakmechanisms 1) and c and to close the make-and-break mechanism a. Theclosing of the make-and-break mechanism a, which is in theshifting-circuit of signal A, is only a preparatory step, as the circuitwill remain open until track-relay is energized and to shift armature 41against its contact -point, said armature and contactpoint forming partof the shifting-circut of signal A. The opening of make-and-brcakmechanisms 12 and cby the movement of signal A to danger will break theholding and shifting circuits through magnet 17 The deenergizing ofmagnet 17 will permit finger 6 of distant signal-lever 1 to free itselffrom catch 31, whereupon the distant signal A will go to danger. Themovement of the lever 1 by the dropping of the distant signal to dangerwill close the make-andbreak mechanism d; but. this is merelypreparatory, as the shifting and'holding circuits for clearing thedistant signal cannot be completed except by the closing ofmake-and-break mechanisms 1) and c, which can be effected only by theclearing of homesignal A. As heretofore stated, this signal A cannot becleared while relay 42 is held open by the presence of a train onsection A.

As the train enters section B the signals B and B will be caused to goto danger by the breaking of the circuits controlled by track-relay 42The movement of the home; signal B to danger will open the make-andbreakmechanisms 1) and c, whereupon the distant signal B will also drop todanger.

The passage of the train oif section A will permit the energizing ofrelay 42 and the consequent closing of the holding and shifting circuitsof signal A through magnet 17 and the motor 29, whereby the signal A"will be shifted to clear position. As this signal reaches clear positionmake-and-break mechanism a will be opened and make-and-breakmechanisms 1) and 0 will be closed. The opening of make-and-breakmechanism a will break the shifting-circuit through the motor andlow-resistance coil of magnet 17, but will not affect the circuitthrough the high-resistance coil of the same magnet. The closing ofmake-and-break mechanisms 1) and c is a second step preparatory to theclearing of the distant signal A which is an indicator of home-signal B,as the holding and shifting circuits of said signal A were broken by theopening of the circuit through relay 50 when the make-and-breakmechanism 5 was opened by the dropping of home-signal B to danger. Assoon as the train passes off tracksection B and home-signal B cleared,thereby closing make-and-break mechanism 1), relay will becomeenergized, so as to pull its armature 49 against its contact-point,thereby completing the holding and shifting circuits through magnet 17and the motor. As the signal A is cleared by the motor make-andbreakmechanism dis opened, thereby breaking the shifting-circuit through themotor and low-resistance coil of magnet 17 ,but without affecting theholding-circuit through the hi ghresistance coil of said magnet.

I claim herein as my invention 1. In a signaling apparatus, the combination of signals, a motor for shifting said signals, independentconnections from the signals to the motor, a lock for holding eachsignal in clear position, a magnet controlling each signal connectionand lock anda trackcircuit controlling the circuits of the motor and ofthe controlling-magnets, substantially as set forth.

2. In a signal apparatus, the combination of an electric motor, twosignals, independent electrically-controlled connections from thesignals to the motor, two shifting-circuits each having the motor andone of the magnets of the connections between the signals and motorarranged in series in said circuits, and a make-and-break mechanismcontrolling said circuits and controlled by train moveinents,substantially as set forth.

3. In a signal apparatus, the combination of a motor, two signals,independent electricof an electric motor, two signals, independentelectrically-controlled connections from the signals to the motor, twoshifting-circuits each having the motor and the magnets of one of thesignal connections arranged in series therein, make-and-break mechanismsincluded in said circuits and controlled by the signals, andatrain-controlled make-andbreak mechanism controlling both signals,

substantially as set forth.

5. In a signal apparatus, the combination of an electric motor, twosignals, independent connections from the signals to the motor, magnetshaving high and low resistance coils con trolling saidconnections,shifting-circuits including the low-resistance coils and themotor, holding-circuits including the high-resistance coils, and atrain-controlled makeand-loreak mechanism controlling said circuits,substantially as set forth.

6. In a signal apparatus, the combination of an electric motor, twosignals, independent connections from the signals to the motor, magnetshaving high and low resistance coils controlling said connections,shifting-circuits including the low-resistance coils and the motor andcontrolled by the signals holding-circuits including the high-resistancecoils, the holding-circuit of one signal being controlled by the othersignal, and a train-controlled make-and-break mechanism controlling theholding and shifting circuits, substantially as set forth.

7. In a signal apparatus, the combination of two track-circuits, anelectric motor, two signals having independent connections to the motor,two locks for holding the signals in clear position two magnetscontrolling the locks and the connections between the signals and motor,two shifting-circuits one including the motor and one of thecontrollingmagnets and the other including the motor and the othercontrolling-magnet, a make-

